Electric ignition device.



PATENTS!) SEPT; 15, 1903.

' A. R. MOSLER.

- ELECTRIC IGNITION DEVICE.

APPLICATION FILED SEPT. 25 1902.

no MODEL.

j M x 20 Mfi 'mnr 3",

. film, I wlmwwm za 29$ 19 a lift/203x03. [Ill E7210):

Patented September 15,1903.

PATENT Grains;

ARTHUR n. MosLnR, or New roan, N. r.

ELEGTRlC lGNlTlON DEVICE.

SPECIFI ATION forming part of Letters Patent No. 7381531, dated. September 15, 1903. Application filed September 25, 1902, fiarial No. 124.746. (No model.)

.To all whom it concern.-

Be it known that I, ARTHUR R; MosLER, a citizen of the United States, and a resident of t'he'borough of Manhattan, in the city and State of New York, have invented a new and useful Improvement in Electric Ignition Devices, of which the following is a specification.

My invention relates to an improvement i5 without afiecting the assembling of the se cral parts.

A further object is to provide a device in which the insulating-block is made reversiole, so as to lengthenits life.

Y A still furtherobjeot is to provide a protcctor for the outer end of the insulating; block.

A practical embodiment of my invention is represented in the accompanying drawings, in which- Figure 1 is a view in side elevation of the electric ignition device. Fig. 2 is a longitudinal central section through the same, showing the device in engagement with the cylinder-wall of an engine of such diameter that the inner end of the base projects into the interior of the cylinder. Fig. 3 is a view in side elevation of the'insulating-block. Fig. 4: is an end view of the same. Fig. 5 is a side view of one of the packing rings or gaskets which are interposed between he insulatingblock and base and cap of the device. Fig. 5 is a transverse central section through the ring or gasket, and Fig. 7 is a face view of the same.

The conducting-wire is denoted by 1, and it may be provided at its inner end with the usual platinum point 2. This conductingwire 1 is exteriorly screw-threaded.

' of the base.

enlarged middle portion 5. Annular shoulders 6 and 7 are thus formed around the periphery of the insulating-block.

Corresponding holes 8 and 9 extend inwardly from the opposite ends of the insnletting-block, which holes preferably flare outwardly toward the ends of the block.

Angular seats 10 and l are provided at the inner ends of the holes 8 and 9-.

A hole 12 connects the holes 8 and 9 for permitting the insertion of the conducting wire through the block.

A shoulder-nut 13 has a screw-threaded engagement with the inner portion of the couducting-wire 1, which nut is locked against movement in the inner end of the insulatingblock in the present instance the seat 10 at the inner end of the hole 8.

A hollow base 14 embraces the middle and inner end portion of the insulating-block, which base is provided with a shoulder 15,,

between which and the shoulder 6 of the in,-

enlisting-block I insert one of my improved packing rings r gaskets, to be hereinafter more fully described.

A cap 16 embraces the insulating-block and has a screw-threaded engagement with the outer end of the base, which cap is provided with an annular shoulder 17, between which and the shoulder 7 'of the insulating-block I insert one of my improved packing rings or gaskets.

The base lei is provided with a reduced closed hollow shank 18, having asinall open ing 20, which in the present instance is located in the end 19 thereof. The walls of this opening 20 through the inner end of the base 14 may be beveled,so as to presenna sharp edge for assisting the jump of the spark from the sparking-point 2 to the walls of the said opening 20. This end 19 of the hollow shank '18 of the base is spaced a short dis tance from the inner end of the insulatingblock, and the side walls of the shank are closed, so as to form a chamber surrounding the conta'ct-point with the only exit therefrom through the opening 20 in the end wall chamber is formed around the sparking-point 2, irrespective of the thickness of the'cylin By this arrangement a closed tity-oi"- gas which enters the said chamber to be first ignited even by a very slight spark,

' end this ignited gas bursts through the small fiber or mice,

opening intolthe interior of the cylinder, thus igniting the larger mass of gas therein. The portion of the insulating-block which projects outwardly beyond the cup 16 is proeected from being injured and broken by means of an annular protector 21 of some suitsele material-such, for instance, as hard The inner end of this protector engages the cap '16 and the outer end preferably projects beyond the outer end of the insulating-block. This protector is held in position by menus of a nut 22, hsving'a screwlhreaded engagement with the conilucting-wire 1, between which not and the outer end of the protector I may inserts suitable bearing-washer 23. lhe usunlbindingnut 24 is also engaged with the outer end of the conducting-wire 1.

The packing rings or gaskets which I in-' terpose between the enlarged portion 5 of the insulating-block and the loose end can, respectivelynire constructed as follows: A shell of thin sheet metal is bent to form an inner wall 25 and two outwardly-extended side replaced by other gaskets of the same con.

struciion in u, very simple and expeditious manner.

It has'heen found that the use of asbestos it will be seen that in the ignition device constructed as above described the conduciing-wire 1 may be turned in one direction or another in accurately adjusting its sparkingpoint with respect to the base which forms the other sparking-point so as to produce the best results. The end walls of the insulating-block are also made of such form as to produce the nest preventive of short-circuiting by the deposit of carbon should oil be used in excess or air find its way into the small chamber of the pin Furthermore,'the block is so constructed that it may be quickly reversed when desired to bring its other end into the interior of the base. lating-bloek becomes extremely hot, and it has been found that the block is frequently cracked or broken by the exposure of the outer ends to the elements-such, for instance, as rain, snow, &c. This heretoforeexposed end is now protected, as above described, not only from the elements, but also from accidental blows of moderate strength.

What I claim is- 1. An electric ignition device comprising a hollow base, a cop engaging the some, an insulating-block secured within the base and cap and projecting beyond the cap, a con ducting-wire within the block, a protector surrounding the exposed portion of the said block and means engag'ing the conductingwire for forcing the protector against the cap and securing it; in position around the block, 2. An electric ignition device comprising n his insulating-bloc secured within'f he base and cap and a, conductingwire extending through the said block.

3. An insulating-block for electricflgnitiou devices comprising an enlarged middle porlion and reduced hollow end portions having angular sects therein.

'4. A reversible block for electric ignition devices comprising an enlarged middle portion and reduced end portions h .ving holes extending inwardly toward the en urged midule' portion and angular sentsat the inner ends of the said holes.

5. An insulatingblock for electric ignition devices having an enlarged portion and a re- .duced end portion having a hole extended. in-

wardly toward the enlarged portion lthc walls of the hole being made during.

6. An insulating-block for electric ignition angular seat surrounding the hole interme diate the endsoi-the block. v 7. A packing-ring for electric ignition (le vices comprising a shell bent to form in walls and a longitudinal wall connecting i. same and a. filling of packing material in. the space thus formed. 1 v

In testimony tha't I'hlaim th'e foregolng as my invention I have signed my name, in pres;

tember, 1902.

ARTHUR n. MOSLER.

Witnesses FREDK. HAYNES,

C. Sunnosnn.

an extra rich mixture of hydrocarbon gas of When in u'se, the insu-' hollow base, s eh;- aherefor, a single reversi-.

devices lievinge hole therethrcugh and an once of two-witnesses, this "19th day-of Sup 

